Back brace



FIG. 1 is a front perspective view of my new design for back brace;

FIG. 2 is a back perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a back elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a left side view thereof;

FIG. 8 is a right side view thereof;

FIG. 9 is a perspective view of a thereof being worn by a user; and,

FIG. 10 is a perspective view thereof, showing a break to indicate no particular length, however nothing is claimed that is not shown. 

CLAIM I claim the ornamental design for back brace, as shown and described. 